from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The region of space through which the solar wind extends.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The region of space where interstellar medium is blown away by solar wind; the boundary, heliopause, is often considered the edge of the Solar System.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the region inside the heliopause containing the sun and solar system
Sorry, no etymologies found.